In my previous builds I have always stuck to the standard Aixiz modules for my diodes to sit in. But I wanted to throw together a fairly simple 532nm laser and it seemed like the easiest route to go would be to pick up one of these modules from DX.com which is on it's way now - 200mW 532nm Green Laser Module (3V 11.9mm) - Free Shipping - DealExtreme
I know that the output probably won't be completely up to spec, but the reviews seemed decent enough so I figure that I should at least get a nicely visible green with a little burning capability.

The one thing though is that it doesn't appear to have any means of adjusting the focus. So this means that while it'll be nice for pointing out stars and such I'd never really be able to fully harness this laser's burning potential. But what I did notice is that the end of the module is threaded, so that made me wonder if anybody knows of some sort of attachment that could go on which could house an adjustable lens? Or is there any other way of achieving an adjustable focus from this module.

You might be able to unscrew the front off the module and then use it with a focusing module on a host. Beware that it will also expose all the infrared that may be filtered out by the module optics (assuming there are any filters in the first place).

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I'm talking about those focusable hosts you can buy on shop-sites like Lazerer.

If you're trying to attach an Aixiz module, they won't screw on to the front of a green module (or at least any I've found), and I don't know if the lenses in them would be correct for the output from a green.

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